Write the balanced equation for the reaction conducted in this lab, including appropriate phase symbols.
Determine the partial pressure of the hydrogen gas collected in the gas collection tube.
Calculate the moles of hydrogen gas collected.
If magnesium was the limiting reactant in this lab, calculate the theoretical yield of the gaseous product. Show all steps of your calculation.
Determine the percent yield of this reaction, showing all steps of your calculation.
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Would the following errors increase, decrease, or have no effect on the calculated moles of gas collected in the experiment? Explain your answers in complete sentences.
The measured mass of the magnesium was smaller than the true mass.
The actual temperature of the hydrogen gas is lower than room temperature.
Explain in terms of particle collisions and Dalton’s law why it can be assumed that the total pressure inside the gas collection tube is equal to the atmospheric pressure outside of the tube.
If an undetected air bubble was trapped inside the gas collection tube, how would this affect your calculated percent yield? Explain your answer